external of Arduino ss micro board

Other Hardware 3rd Party Boards
1

Which pins should be used for external supply?

Mini-SS-mikro-ATMEGA32U4-mod-l-arduino-pro-mikro-kurulu-i-in-uyumlu.jpg
Mini-SS-mikro-ATMEGA32U4-mod-l-arduino-pro-mikro-kurulu-i-in-uyumlu.jpg800×800 75.3 KB

2

What is the frequency for the processor. For 16MHz, 5V and GND, for 8MHz 5V or 3.3V and GND.

There does not seem to be a RAW/Vin pin, so higher voltage will not work.